Steve Cousins wrote:
Gordon Henderson wrote:
On Tue, 5 Sep 2006, Paul Waldo wrote:
Hi all,
I have a RAID6 array and I wondering about care and feeding
instructions :-)
Here is what I currently do:
- daily incremental and weekly full backups to a separate machine
- run smartd tests (short once a day, long once a week)
- check the raid for bad blocks every week
What else can I do make sure the array keeps humming? Thanks in
advance!
Stop fiddling with it :)
I run similar stuff, but don't forget running mdadm in daemon mode to
send
you an email should a drive fail. I also check each device individually,
rather than the array although I don't know the value of doing this over
the SMART tests on modern drives though...
Would people be willing to list their setup? Including such things as
mdadm.conf file, crontab -l, plus scripts that they use to check the
smart data and the array, mdadm daemon parameters and anything else that
is relevant to checking and maintaining an array?
I'm running the mdmonitor script at startup and a sample mdadm.conf
(one of 3 machines) looks like:
MAILADDR [EMAIL PROTECTED]
ARRAY /dev/md0 level=raid5 num-devices=3
UUID=39d07542:f3c97e69:fbb63d9d:64a052d3
devices=/dev/sdb1,/dev/sdc1,/dev/sdd1
These are SATA drives and except for the one machine that has a 3Ware
8506 card in it I haven't been able to get SMART programs to do anything
with these drives. How do others deal with this?
Thanks,
Steve
Excellent idea, Steve.
In my crontab, I have this:
# Check RAID arrays for bad blocks once a week
30 2 * * Tue echo check >> /sys/block/md0/md/sync_action ; echo "Checking md0 bad
blocks"
30 2 * * Wed echo check >> /sys/block/md1/md/sync_action ; echo "Checking md1 bad
blocks"
I have this in my smartd.conf:
/dev/hda -H -m root -S on -o on -I 194 -s (S/../.././02|L/../../6/03)
/dev/hdc -H -m root -S on -o on -I 194 -s (S/../.././02|L/../../6/03)
/dev/hde -H -m root -S on -o on -I 194 -s (S/../.././02|L/../../6/03)
/dev/hdg -H -m root -S on -o on -I 194 -s (S/../.././02|L/../../6/03)
/dev/sda -d ata -H -m root -S on -o on -I 194 -s (S/../.././02|L/../../6/03)
/dev/sdb -d ata -H -m root -S on -o on -I 194 -s (S/../.././02|L/../../6/03)
/dev/sdc -d ata -H -m root -S on -o on -I 194 -s (S/../.././02|L/../../6/03)
My Fedora Core box has this in /etc/init.d/mdmonitor:
daemon --check --user=root mdadm ${OPTIONS}
where OPTIONS="--monitor --scan -f --pid-file=/var/run/mdadm/mdadm.pid"
I have no mdadm.conf. My entire filesystem consists of md0 (/boot) and md1(/).
I figure if I have problems and need the file, it won't be available anyway. If I am mistaken,
please do let me know!
Any other suggestions would be welcomed!
Paul
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